摘要
通过比较低压滴灌系统与常压滴灌系统,对滴灌带的水力特性及与温度的关系做了一些试验研究。结果表明:在同一条件下,小流量的滴灌带沿程的流量变化不大,滴头的流态指数与常压比较会有不同的变化。此外试验中发现:低压条件下滴灌带滴头流量受温度变化影响显著。
In order to reveal hydraulic trait of drip irrigation strap and the influence of temperature to emitter discharge,the experiment compares the low pressure drip irrigation system with general pressure.The result shows that under the same conditions,low-discharge drip irrigation strap＇s emitter discharge has a little change along the distance.The emitter＇s flow regime exponent has some difference with normal-pressure.Besides,discovering temperature has a notable influence on the emitter discharge under low pressure.
出处
《中国农村水利水电》
北大核心
2010年第12期8-10,共3页
China Rural Water and Hydropower
基金
国家科技支撑计划项目(2007BAD38B00)资助
关键词
低压
常规滴灌带
小流量滴灌带
温度
滴头流量
low pressure
general drip irrigation strap
low-discharge drip irrigation strap
temperature
emitter discharge
